V

viscosity

In the cognitive-dimensions framework, this is “resistance to change.” A viscous system is one that requires many individual actions to achieve what is conceptualized as a single change. It is the opposite of fluidity. See the text for more details.

visibility

In the cognitive-dimensions framework, this is the ability to view components easily whenever necessary. See also juxtaposability.

visual working memory

A limited-capacity visual store that is distinct from verbal working memory. It is a core component of modern cognitive theory.